Improvement in the methods of forming shaftrlrons for carriages



A mit@ Stanze (gedient (tithe FRANCIS B. MORSE, OF PLANTSVIIJLE, CONNECTICUT, ASSIGNOR TO HIM- SELF AND H. D. SMITH & COMPANY, OF SAME PLACE.

Letters Patent' No. 110,385, dated December 20, 1870.

IMPROVEMENT IN THE 'METHODSF' FORIMING SHFTSIRQNS FOR CARR'IAGES.

The Schedule r'eerre'to in these LettexsvPatent and making part oi' the same,

To all whom it may concern Be itvknown that I, FRANCIS '13. Monsn, of Plants-V ville, in the county of Hartford and State of Connecticut, have invented a new Improvement in Process for Forging Shaft-Irons for Carriages; and I do hereby declare the following, when taken in connection with the accompanying drawing and the kletters of 'reference marked thereon, to be 'a full, cle'a'r, and exactK description of the same, and which said drawing constitutes .part of this specitication, and represeuts, in

Figure 1, a perspective view of a completelyforxned shaftiron,fand of another partly formed, the completion of the one and the partial forming of the other heilig the result of one operation only of the dies, andin Figure 2, a side view, further illustrating the process Figures 3 and 4, perspective views of the upper and lower dies for forging the shaft-irons.

This invention relates-to an improvement lin the process of forging the article of manufacture kno'wn to the trade as shaft-irons; that is, the eye andl iron by which the shaft is attached to the shackle.

' Heretoforet-hese have been produced by taking a bar of iron the full width of the head, upsetting to give the thieknessof the head, and then drawing down the shank.

The object of my invention is to use iron the size lof the shank, and perform at the same time theoperation for the enlargement of the head on one .blank and for molding theshauk and head of another, so that `thev work is performed to a certain extent upon the -two at the Sametime.

A is the shank.

B, the headthe head necessarily wider than the shank, sothat a shoulder is formed at the intersec-` v tion of the shank and head. I take a bar of iron, C,

Aof-nearly the\exact size required for the shank, and iirst turn over the end a on to the bar, as seen in fig. 2, so as to double the metal at, that point. The heated bar is then placed in the dies and swaged, the enlarged end forming .the head B, and the body C forming the shank A, the end of the shank being left of theusual form for the consumcr'toweld directly ou to the extension. At the same time the blows are struck to form the head and shauk,a depression, f, made in the bar C, forming the part a. Thus one iron is completed and the second begun at the same operation. The first iron is separated from the second on the broken line, fig.:1,'then the part A doubled under the part C, ready for the formation of the second iron and part of the third.

' By this process the labor of drawing the shank is entiielydispensed with, and the cost of manufacture, by actual test, is as thirty to eighty-seven, thus reducing the cost` oi" manufacture more than one-half from the process as heretofore practiced.

The` dies by which I perform the process before described are represented in figs. 3 and 4, N being the lower and M'the upper die, a recess, n, in the lower ,die the shape of the iron, save half the head, which is formed at m inthe upper die, and in the upper die the construction is made as at P, to prepare the metal ffor' doubling to form the head, as before described.

I do not claim anything new in the particular form of the shaft-ironcomplete as an article of manufacture; but l I do claim- The process herein described for forming the shaftf iron of carriages.

F. B. MORSE.

Witnesses:

A. J. Tnznrrs, J. H SHUMWAY. 

